HP NonStop Server (Himalaya) Business Continuity Customer Experiences Moderated by Harry Scott, Carr Scott Software Presenting: – Barclays Bank – Phil.

HP NonStop Server (Himalaya) Business Continuity Customer Experiences

Moderated by Harry Scott, Carr Scott Software

Presenting:– Barclays Bank – Phil Nye

Principal Consultant

– Brown & Co. – Robert ClineVice President, a division of JP Morgan Chase & Co.

– BBS Norway – John Green Principal Consultant

Session – ES-02-U

Presentations and Challenges• Barclaycard UK -- Phil Nye

– Barclaycard's business continuity environment with emphasis on their use of TMF with ACI's Base24

• Brown & Co. USA -- Robert Cline

– Brown & Co's disaster recovery model with emphasis on Indestructible Scalable Computing and ZLE

• BBS Norway -- John Green

– BBS Norway's computing environment with emphasis on complete environment replication

Phil Nye via speakerphone from the UK

Barclaycard – BASE24

• Barclaycard – A large BASE24 Installation– Nearly 7 million transactions peak day.– Over 230 Transactions per Second– Around 280,000 POS Terminals– Switch to Contingency in single-digit minutes

• Barclaycard – A long History of using BASE24 and TMF/RDF– Late 1980’s: Added TMF support to BASE24 POS3.0– Throughout 1990’s: BASE24/XP – written for TMF– 2000-2001: Standard BASE24 POS5.3 / AutoTMF

The Problem ?

Used 2 * S72014 systems and stress-tested BASE24 POS 5.3 (Beta Release) with:

Golden Gate’s Extractor / Replicator Compaq's NonStop AutoTMF

How to provide a contingency solution for BASE24 POS 5.3 and ATM 6.0 ?

What did we do ?

So what did we conclude ?

• AutoTMF does add TMF support to our high-volume BASE24 configuration. We were able to stress-test a single BASE24-POS 5.3 Logical Network to 250 tps.

• We saw significant improvements in disc I/O:• PTLF: Entry-sequenced: DP2 writes up to 56K (=40 TPS)

• Able to keep e.g. PTLF/ILF Alternate Keys in Cache

• Minimises the impact of Block Splits to e.g. SAF files

• POS Settlement cutover is some 50% faster

• You can also add TMF support to your Batch programs

Production Experiences:• Started to migrate from BASE24/XP to BASE24-POS and

AutoTMF in mid-2001. Fully live by 4th Qtr 2001.

• NO problems experienced in production with AutoTMF.

• At peak we were running with some 650 TMF txns/sec and generating some 1.4Gbytes /sec to the TMF Auditrail discs (1 MAT and 2 Auxiliary Trails).

• Because of the way AutoTMF determines transaction boundaries, we run with more TMF transactions than Business Transactions.

• Forced us to implement RDF IMP/x v 1.2 (to eliminate RDF Receiver Transaction Status Table problems). NO problems experienced with this version of RDF – and we ship Format 2 PTLF files.

BASE24 and AutoTMF specifics:We use AutoTMF to AUDIT the

following files:

• P/TLFs and Alt.Keys

• ILFs and Alt Keys.

• PTDF/PRDF

• SAFs

• Database (CPF, etc.)

We don’t AUDIT the following files:

• NEGs (can’t FUP RENAME an audited file).

• IDF (problem with the way BASE24 handles fileinfo call – AutoTMF can now hide all details of an Audited file from an application)

• A VERY simple AutoTMF configuration. ALL GLOBAL parameter settings and WEAK AutoTMF Isolation mode.

• We run multiple BASE24 Logical Networks

• We don’t RDF-protect all of these (our choice)

• We don’t RDF certain files (e.g. ILFs) – reduces Expand requirements

• Those files not RDF’ed are configured to use Auxiliary AuditTrails

Presentations and Challenges• Barclaycard UK -- Phil Nye

– Barclaycard's business continuity environment with emphasis on their use of TMF with ACI's Base24

• Brown & Co. USA -- Robert Cline

– Brown & Co's disaster recovery model with emphasis on Indestructible Scalable Computing and ZLE

• BBS Norway -- John Green

– BBS Norway's computing environment with emphasis on complete environment replication

Brown & Co.• Front and back office Brokerage system

– SIS system (ADP/SIS)

– Computer environment, application and procedures upgrade

– Latest and greatest Himalaya technology

• Business continuity and business intelligence initiative– Sub 10 minute business continuity

– Leverage business continuity investment for business intelligence

– Adding TMF and SQL to an Enscribe, non-TMF, legacy 3rd party application package (ahead of the vendor)

E nscribe… … … …

SQL

… … … …

SQLSpoolerSpooler

Object F iles

E nscribe

Com paq Rem ote Database Facility (RDF)Com paq NonStop TMF

Com paq NonStop SQL (SQL/MP)Com paq NonStop AutoTMF™ Software

Carr Scott Escort SQL™ and Escort RANGER ™ Software

NON-AUDITEDREPLICATION

AutoSYNC

Com paq NonStop AutoSYNC™

AUDITEDREPLICATION

RDF/TM-MP/SQL/AutoTMF/EscortSQL

PRIMARYSite

REMOTESite

Application

E DITF iles

Application

Object F ilesE DITF iles

An Integrated Approach to ReplicationAn Integrated Approach to Replication

\DEVELOPMENT6 Processor

S740006 Full APP

andEnvironments

CODE MIGRATION

REPLICATION

PERMANENT WALL TEMPORARY WALL

REPLICATION

REPLICATION

REPLICATION

CODE MIGRATION

PRIMARYSite

REMOTESite

PRODUCTION

ENVIRONMENTS

DEVELOPMENT

AND TEST

ENVIRONMENTS

Project Lifecycle (PLC) and Replication Project Lifecycle (PLC) and Replication from a Platform View from a Platform View

3 Full REP

\TEST6 Processor

S740004 Full APP

andEnvironments

3 Full REP

\REMOTE12 Processor

S740001 Full APP

andEnvironments

2 Full REP

\PRIMARY12 Processor

S740001 Full APP

andEnvironments

2 Full REP

Brown & Co.'s Uses RDF for...

• Less than 7 minute full fail-over with 100% data integrity to ensure Business Continuity

• Foundation for 'no downtime, no excuses' as part of ISC and CPA initiatives

• Duplicate database used for data mining as part of ZLE implementation

• Duplicate database is source for 'off-host' replication

Presentations and Challenges• Barclaycard UK -- Phil Nye

– Barclaycard's business continuity environment with emphasis on their use of TMF with ACI's Base24

• Brown & Co. USA -- Robert Cline

– Brown & Co's disaster recovery model with emphasis on Indestructible Scalable Computing and ZLE

• BBS Norway -- John Green

– BBS Norway's computing environment with emphasis on complete environment replication

Bankenes Betalings Sentral (BBS)

• eGiro system– Messageway (BCE Emergis)

– MCI (Messageway Clearing Interface) & “waiting register” database

– S74008 & S74004

• Kabal project– AutoTMF, AutoSync, RDF & TACL

– First joint user of AutoTMF and AutoSync in Europe

– First to implement DR for Messageway with RDF

What was replicated

• Database Replication

– Messageway – Audited and previously non-audited files

– MCI & Waiting Register - All audited• Exception is one sequence number allocation file

– All transient, intermediate files

• Application Infrastructure files

How did we replicate the application ?

• NonStop AutoTMF / RDF

– AutoTMF Enabled BBS to protect non-audited elements of the Messageway database

– TAL, COBOL85, NMCOBOL, NMC, pTAL and NMCPLUS code

– BCE Emergis supplied utility handles system name changes

How did we replicate the application ?

• NonStop AutoSYNC– Source, Object, TACL macro files

– TACL macros handle CPU number and system name changes

– Transient files, written with Bulk I/O

– Did not use AutoTMF for performance reasons

– AutoSync was a key success factor for the project• Saves money in the longer term: No manual procedures necessary

and likelihood of errors eliminated

• TACL macros handle CPU and system name changes

Automated Replication Procedures

• Handling “Parked Data”– Data repository of unstructured files

– Index for each record with pointer to file & RBA

– Data repository written by single process using Bulk I/O

– Read by multiple readers as permanent extended data segment

– Could non be audited, so AutoSync used to transfer input files to backup system

– Input files re-processed on independent Parked Data subsystem

– Communicating TACL macros running on primary and backup systems handle housekeeping functions

AutoSync Usage

• Closely monitor performance

– Consider multiple batch ID’s

• Data compression should generally be disabled

• Does not replicate purges of empty filesets (may need dummy files)

Summary

• Barclaycard UK - Phil Nye– TMF (and AutoTMF) make applications run faster and provide greatly

increased data integrity (including recovery from human failure)

• Brown & Co. USA - Robert Cline– RDF provides the fastest, most reliable database replication for

disaster recovery, available and is the foundation for ISC / CPA

• BBS Norway - John Green

– Replicating your database isn't enough, AutoSYNC provides complete application protection from disasters, ensuring that the application environment is in place, in addition to what RDF provides for your databases

• Copies of this presentation can be found at: www.CarrScott.com

Want More Information? • Compaq Disaster Recovery/RDF stand (Exhibition Hall)

• Product Information (TMF, AutoTMF, RDF and AutoSYNC)

– http://nonstop.compaq.com/view.asp?PAGE=RDF_SW

• Presenter Contact Information

• Harry Scott, Carr Scott Software +1 [email protected]

• Phil Nye, Cardlink Consultants +44 (1565) [email protected]

• Robert Cline, Brown & Co. +1 (617) [email protected]

• John Green, BBS AS +47 2289 [email protected]